If you login to the affilaite site, click on linking codes on the left hand side. All the casino’s will be listed there and the linking code beneath it. So just copy and paste the linking code to avoid these type of problems.
The proper linking code would look like this (minus the x):
httpx://www.blackjackballroom.com/referral.asp?aff_id=aff12076
Please let me know if you have futher questions about this 